Equivalent & Substitute Parts for 160333J400D-F

Part Overview

The 160333J400D-F is a 0.033 µF film capacitor manufactured by Cornell Dubilier Electronics (CDE) with a 400V DC voltage rating, polyester metallized dielectric, and radial through-hole mounting. This component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified to address inventory availability, extended operating temperature ranges, alternative dielectric materials for specific application requirements, or higher voltage ratings when circuit design permits.

Substiute Parts

160333J400D-F

Cornell Dubilier Electronics (CDE)In Stock: 744160333J400D-F Datasheet

Current PartRFQ

B32521C6333J

EPCOS - TDK ElectronicsIn Stock: 4994B32521C6333J Datasheet

DirectRFQ

B32522Q8333J000

EPCOS - TDK ElectronicsIn Stock: 3480B32522Q8333J000 Datasheet

SimilarRFQ

B32621A4333J000

EPCOS - TDK ElectronicsIn Stock: 15370B32621A4333J000 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 160333J400D-F are classified into three categories based on electrical and mechanical compatibility:

Direct Manufacturer Equivalent (Voltage Downgrade): B32521C6333J maintains identical capacitance (0.033 µF), tolerance (±5%), and DC voltage rating (400V). This part features polyester PET metallized dielectric with stacked radial configuration. Physical dimensions differ slightly (0.512" L x 0.157" W versus 0.512" L x 0.197" W), with reduced height (0.354" versus 0.433"). Lead spacing remains at 0.394" (10.00mm). Product status is Not For New Designs. This substitution is valid for existing designs where physical space constraints permit the smaller footprint.

Similar Manufacturer Equivalent (Voltage Upgrade): B32522Q8333J000 maintains identical capacitance (0.033 µF) and tolerance (±5%) with elevated DC voltage rating (630V versus 400V). This part uses polyester PET metallized dielectric with radial configuration. Physical dimensions are larger (0.709" L x 0.197" W with 0.591" lead spacing versus 0.512" L x 0.197" W with 0.394" lead spacing). Product status is Active. This substitution applies when circuit design permits higher voltage rating and PCB layout accommodates increased lead spacing.

Parametric Equivalent (Dielectric Alternative): B32621A4333J000 maintains identical capacitance (0.033 µF), tolerance (±5%), DC voltage rating (400V), and AC voltage rating (200V). This part uses polypropylene (PP) metallized dielectric with stacked radial configuration, classified as High Pulse series. Physical dimensions and lead spacing are identical to the main part (0.512" L x 0.197" W, 0.394" lead spacing). Product status is Active. This substitution applies to applications requiring high pulse or high dV/dT performance characteristics.

All substitute parts maintain RoHS3 compliance and REACH unaffected status. Substitution validity depends on circuit voltage requirements, physical space constraints, and application-specific performance needs.

Parameter Comparison

Engineering Selection Recommendations

B32621A4333J000 (Polypropylene Equivalent): This part is the preferred substitute for new designs. It maintains identical electrical specifications (0.033 µF, ±5%, 400V DC, 200V AC), identical physical dimensions, and identical lead spacing. The polypropylene dielectric with stacked configuration provides superior performance in high pulse and high dV/dT applications. Active product status ensures long-term availability and supply chain stability. Selection of this part is recommended when application requirements include pulse suppression or transient voltage protection.

B32522Q8333J000 (Higher Voltage Rating): This part is suitable for designs where circuit voltage stress permits 630V DC rating. The elevated voltage rating provides additional safety margin in high-voltage applications. Active product status ensures availability. Selection requires PCB layout modification to accommodate 0.591" (15.00mm) lead spacing versus the original 0.394" (10.00mm) spacing. This part is appropriate for retrofit applications where voltage requirements have increased or where design margin enhancement is specified.

B32521C6333J (Polyester PET Equivalent): This part is not recommended for new designs due to Not For New Designs product status. Extended operating temperature range (-55°C ~ 125°C versus -55°C ~ 105°C) may benefit temperature-sensitive applications. Reduced physical dimensions (0.354" height versus 0.433") permit space-constrained PCB layouts. Selection of this part is limited to legacy design support or inventory replacement where existing designs specify this component.

Frequently Asked Questions (FAQ)

Q: Can B32621A4333J000 be used as a direct replacement for 160333J400D-F without PCB modification?

A: Yes. B32621A4333J000 maintains identical physical dimensions (0.512" L x 0.197" W), identical height (0.433"), and identical lead spacing (0.394" / 10.00mm). No PCB layout modification is required. Electrical specifications are identical: 0.033 µF capacitance, ±5% tolerance, 400V DC, 200V AC rating.

Q: What is the primary difference between B32521C6333J and B32522Q8333J000?

A: B32521C6333J maintains 400V DC rating with reduced physical dimensions (0.354" height, 0.157" width). B32522Q8333J000 provides elevated 630V DC rating with larger physical dimensions (0.413" height, 0.591" lead spacing). Both use polyester PET dielectric. Selection depends on voltage requirements and available PCB space.

Q: Why does B32621A4333J000 use polypropylene instead of polyester?

A: Polypropylene dielectric provides superior performance in high pulse and high dV/dT applications. This material exhibits lower dissipation factor and better transient response characteristics. Selection of polypropylene is appropriate for circuits requiring pulse suppression, EMI filtering, or transient voltage protection.

Q: Is B32521C6333J suitable for new product designs?

A: No. B32521C6333J carries Not For New Designs product status. This designation indicates the manufacturer does not recommend this part for new designs. Selection should be limited to legacy design support or replacement of existing inventory in fielded products.

Q: What are the lead spacing differences among substitute parts?

A: 160333J400D-F, B32521C6333J, and B32621A4333J000 all use 0.394" (10.00mm) lead spacing. B32522Q8333J000 uses 0.591" (15.00mm) lead spacing. PCB layout modification is required when substituting with B32522Q8333J000.

Q: Do all substitute parts maintain RoHS3 and REACH compliance?

A: Yes. All substitute parts (B32521C6333J, B32522Q8333J000, B32621A4333J000) are ROHS3 compliant and REACH unaffected, matching the compliance status of the main part 160333J400D-F.

Q: What is the operating temperature difference between the main part and substitutes?

A: 160333J400D-F and B32621A4333J000 operate from -55°C to 105°C. B32521C6333J and B32522Q8333J000 extend to -55°C to 125°C. Selection of extended temperature range parts is appropriate for applications with elevated ambient or component temperature requirements.

Q: Can B32522Q8333J000 be used in circuits designed for 400V DC operation?

A: Yes. B32522Q8333J000 with 630V DC rating is suitable for 400V DC circuits. The higher voltage rating provides additional safety margin. However, PCB layout modification is required due to increased lead spacing (0.591" versus 0.394").